School lunch is often synonymous with loud noise. Studies have shown the decibel level in some cafeterias is as high as a lawn mower.

Every so often, though, students at Alice Terry Elementary School, southwest of Denver, are asked not to make any noise.

When the music teacher told students here they'd occasionally have a "silent" lunch break, this was kindergartner Alyssa Norquette's reaction: "Why do we need a silent lunch? Is it because we're too loud or something?"

That is the reason there's a growing movement nationally to have silent lunches. But that's not music teacher Ami Hall's reason. She knew students here didn't have a lot of exposure to live instruments, so she started asking musicians to come in at lunch.

"When you give the kids a chance to hear something that is outside of their range, it allows them to be curious," she says, "and if they're curious, they're better learners in every subject."

Students soon were hearing a shiny gold saxophone played by Harold Rapp, a local musician. The kids were entranced. As Hall had theorized, being quiet at lunch allowed them to think about what they were hearing.

School lunch is often synonymous with loud noise. Studies have shown the decibel level in some cafeterias is as high as a lawnmower. Every so often, though, students at Alice Terry Elementary school southwest of Denver are asked not to make any noise. Colorado Public Radio's Jenny Brundin asked some students what they thought about when they weren't talking.

JENNY BRUNDIN, BYLINE: When the music teacher told students here they'd occasionally have a silent lunch break, this was kindergartener Alissa Norkett's reaction.

ALISSA NORKETT: Why, why do we need silent lunch? Is it because we're too loud or something?

BRUNDIN: That is the reason there's a growing movement nationally to have silent lunches. But that's not music teacher Ami Hall's reason. She knew students here didn't have a lot of exposure to live instruments. So, she started asking musicians to come in at lunch.

AMI HALL: When you give the kids a chance to hear something that is outside of their range, it allows them to be curious, and if they're curious, they're better learners in every subject.

(SOUNDBITE OF MUSIC)

BRUNDIN: Students soon were hearing a shiny gold saxophone played by Harold Rapp, a local musician. The students were entranced. And as Hall had theorized, being quiet at lunch allowed them to think about what they were hearing. Here's second grader Edson Jimenez.